Definition of Efficacy

1. Noun. Capacity or power to produce a desired effect. "Concern about the safety and efficacy of the vaccine"




Definition of Efficacy

1. n. Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting disease; the efficacy of prayer.

Definition of Efficacy

1. Noun. Ability to produce a desired amount of a desired effect. ¹

¹ Source: wiktionary.com

Definition of Efficacy

1. effectiveness [n -CIES] - See also: effectiveness

Medical Definition of Efficacy

1. Strength, effectiveness. The ability of a drug to control or cure an illness. Efficacy should be distinguished from activity (see), which is limited to a drug's immediate effects on the microbe triggering the disease. (09 Oct 1997)

Efficacy Pictures

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Lexicographical Neighbors of Efficacy

effervescible
effervescing
effervescingly
effervescive
effet
effete
effetely
effeteness
effetenesses
efficacies
efficacious
efficaciously
efficaciousness
efficacities
efficacity
efficacy (current term)
efficience
efficiencies
efficiency
efficiency apartment
efficiency engineer
efficiency expert
efficient
efficiently
efficientness
effierce
effierced
effierces
effigial
effigiate

Literary usage of Efficacy

Below you will find example usage of this term as found in modern and/or classical literature:

1. Preventing Tobacco Use Among Young People: A Report of the Surgeon General by M. Joycelyn Elders (1997)
"Self-efficacy An individual's efficacy (or confidence) in performing specified skills and behaviors is a significant mediator of peer influences to smoke ..."

2. An Introduction to the Principles of Morals and Legislation by Jeremy Bentham (1879)
"An eighth property to be given to a lot of punish- with^respect nient in certain cases, is that of efficacy with respect to disable- ment. e" ment, or, ..."

3. The Works of Jeremy Bentham by Jeremy Bentham, John Bowring (1839)
"efficacy OF ANTI-USURIOUS LAWS. BEFORE I quit altogether the ... For destroying the law's efficacy altogether, I know of nothing that could serve, ..."

4. The Catholic Encyclopedia: An International Work of Reference on the by Charles George Herbermann (1913)
"The efficacy of the sacraments comes from the Passion of Christ, hence from Christ as a .... The reason is that the sacraments have then- efficacy by Divine ..."

5. The Principles of Moral and Political Philosophy by William Paley (1835)
"Yet, after all, the duty of prayer depends upon its efficacy : for I confess myself ... Now the efficacy of prayer imports that we obtain something in ..."

6. The History of the Reformation of the Church of England by Gilbert Burnet (1829)
"ward graces be in every of the said sacraments, what promises be made to the receivers of them by God, and of what efficacy they be of, ..."

7. Smoking Cessation: Clinical Practice Guideline by Michael C. Fiore (1996)
"efficacy of and cessation rates for various types of self-help formats when used alone (n = 12 studies) Evidence. The following statements support the above ..."

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